Digital controller design for multivariable systems with structural closed-loop performance specifications

1 December 1987

journal article
research article
Published by Taylor & Francis in International Journal of Control

Vol. 46 (6) , 2087-2111
https://doi.org/10.1080/00207178708934037

Abstract

The problem of the direct design of the closed-loop transfer function matrix is addressed for multivariable discrete systems. The limitations imposed by unstable zeros, time delays and the structure associated with these are quantified. A design procedure is formulated that provides the designer with quantitative measures for evaluating the tradeoffs between different closed-loop interaction structures and durations. The problem of intersample rippling is also considered. The procedure requires only linear-algebra operations, includes the eventual construction of the feedback controller in state space, and is presented in a way that allows its straightforward computer implementation.

Keywords

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